Noctigon KR4 Ti+Copper Tail E-Switch 18650 EDC Flashlight

Noctigon KR4 Ti+Copper Tail E-Switch 18650 EDC Flashlight

Quick description:

KR4 TI+Copper

Finish type*

Tailcap type*

LED & Tint*

Please choose

  • The boost driver upgrade is available for the quad version of XP-L HI, SST-20, Osram W1/W2, Nichia 219B R9080 versions, each LED receives 2A current. The driver is not compatible with Nichia E21A, Nichia E17A, and mule versions of the flashlight.

    Please be noted that the boost driver version will have less output on turbo than the regular version, it is a more efficient driver(90-95%) with longer running time and less heat.


    Flat top, unprotected, high drain 18650 battery only (not included in the price)



    • Pocket clip and lanyard ring are both included by default

    • Discrete knurling

    • CNC machined from Titanium & Copper

    • Efficient UK made Carclo Quad LED optic

    • Anti-reflective coated glass lens

    • Unihead construction

    • High lumen output and low moon output

    • Ramping interface

    • Electronic tail switch

    • Beryllium-Copper springs with 45% IACS superior to stainless steel alloys used for springs with only 2% IACS.

    • Temperature step-down

    • Waterproof and dustproof to IP67 standard (up to 1 meter)

    • Default 18650 body with optional 18350 battery tube

    • Weight: 150g (without battery)

    • Dimensions: 98mm(length) * 29mm(head) * 24mm(body), 68mm (length 18350)


    OTF lumen output at start-up:

    Nichia 519A : 3800lm

    Nichia E21A : 1200lm

    SST-20 6500K/5000K: 4200lm

    SST-20 4000K/2700K 95CRI: 3000lm

    SST-20 4000K/3000K 95CRI: 3000lm


    This product uses free software distributed under the terms of the GPLv3.

    Source code is available from

    The Mule version is with 8*LEDs, no optic, no aux LEDs, no hotspot, completely flood. For the general users, we recommend to choose regular version (with aux LED, optic etc) instead of the mule version. (send us an email to if you need the mule version)


    Customer Reviews

    • Blie
      My favorite EDC flashlight January 17, 2021

      This little flashlight quickly became my favorite EDC flashlight. The build quality ist superb and the price/performance ratio is outstanding.

      A lot of emitters to choose from - for somebody who isn't familiar with that probably too much. But the customer service is great and helps when you're not sure, what to get.

    • Synt0xx
      Excellent! November 11, 2020

      Very well made flashlights for a reasonable price.
      Anduril UI is great for flashlight geeks and for general usage.
      Very good Emitter choices and fast shipping from China!
      These lights are built to last!

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